<template>
  <div class="login_container">
    <el-row>
      <el-col :span="12" :xs="0"></el-col>
      <el-col :span="12" :xs="24">
        <el-form
          class="el-card is-always-shadow loginForm"
          :model="loginForm"
          :rules="rules"
          ref="loginForms"
        >
          <h1>Hello</h1>
          <h2>欢迎来到admin</h2>
          <el-form-item prop="username">
            <el-input
              :prefix-icon="User"
              v-model="loginForm.username"
            ></el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              type="password"
              :prefix-icon="Lock"
              v-model="loginForm.password"
              show-password="true"
            ></el-input>
          </el-form-item>
          <el-form-item>
            <el-button
              :loading="loading"
              type="primary"
              size="default"
              class="login-btn"
              @click="login"
            >
              登录
            </el-button>
          </el-form-item>
        </el-form>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
import { User, Lock } from '@element-plus/icons-vue'
//收集账号和密码
import { reactive, ref } from 'vue'
import { useRouter, useRoute } from 'vue-router'
import { ElNotification } from 'element-plus'
//获取el-form组件
let loginForms = ref()

//获取路由器
//引入获取当前时间的函数
import { getTime } from '@/utils/time.ts'
let $router = useRouter()
let $route = useRoute()
//定义变量控制按钮加载效果
let loading = ref<boolean>(false)

let loginForm = reactive({ username: 'admin', password: '111111' })
//引入用户相关的小仓库
import useUserStore from '@/store/modules/user.ts'

let useStore = useUserStore()

const login = async () => {
  //保证全部表单项全部通过再发请求
  await loginForms.value.validate()
  //加载效果 ：开始加载
  loading.value = true
  try {
    //可以书写 .then  保证登录成功
    await useStore.userLogin(loginForm)
    console.log('xxxx', loginForm)
    //编程式导航跳转到展示数据首页
    //判断登录的时候路径当中是否有query参数，如果有跳望query参数，没有跳转到首页
    let redirect: any = $route.query.redirect
    $router.push({ path: redirect || '/' })
    //登录成功的提示信息
    ElNotification({
      type: 'success',
      message: '欢迎回来',
      title: `HI,${getTime()}好`,
    })
    //登录成功加载效果也消失
    loading.value = false
  } catch (error) {
    //登录石材加载效果消失
    loading.value = false
    //登录失败的提示信息
    ElNotification({
      type: 'error',
      message: (error as Error).message,
    })
  }
}
//自定义校验规则函数

const validatorUserName = (rule: any, value, callback: any) => {
  //rule：即为数组校验规则对象
  //value:即为表单元素文本内容
  //函数：如果符合条件callback 方法，注入错误提示信息、
  if (value.length >= 5) {
    callback()
  } else {
    callback(new Error('账号长度至少五位'))
  }
}
const validatorUserPassword = (rule: any, value, callback: any) => {
  if (value.length >= 6) {
    callback()
  } else {
    callback(new Error('密码长度至少六位'))
  }
}

//定义表单校验的配置对象
const rules = {
  //规则对象属性的说明
  // required，代表这个字段务必校验
  //  min:文本长度至少多少位
  // max:文本长度至多多少位
  //message 错误的提示信息
  //trigger 触发校验表单的时机  change=>文本改变时    blur
  username: [
    {
      trigger: 'change',
      validator: validatorUserName,
    },
  ],
  password: [
    {
      // required:true,
      // message:'密码的长度至少6位',
      // min:6,
      // max:15,
      // trigger:'change'
      trigger: 'change',
      validator: validatorUserPassword,
    },
  ],
}
</script>

<style scoped lang="scss">
.login_container {
  width: 100%;
  height: 100vh;
  background: url('@/assets/images/background-34eb3d2b.jpg') no-repeat;
  background-size: cover;
  .loginForm {
    position: relative;
    width: 55%;
    top: 30vh;
    left: 10vw;
    padding: 40px;
    background: transparent;
    h1 {
      color: white;
      font-size: 40px;
    }
    h2 {
      font-size: 20px;
      color: white;
      margin: 20px 0px;
    }
    .login-btn {
      width: 100%;
    }
  }
}
</style>
